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In this episode, Jake and Surma dissect how for-loops actually work and how they've evolved. Turns out, it got complicated.

Surma shows you the new Object Spread operator “...” in JavaScript. If you have questions or suggestions, hit us up on Twitter!

Understand the difference between expressions and statements. Watch this to learn about environment and scope: ...

A few function constructors are refactored to classes and properties are tagged with types. This one step reveals yet another ...

Using the JavaScript write function.

Assigning Variables in JavaScript.

No new features are introduced in this segment. A simple function is added to make debug messages cleaner to write and the ...

A bug has surfaced due to the way variables are captured in scope in JavaScript. Rather than wrap the call in additional code that ...

A JavaScript file was renamed to TypeScript and has errors. Learn how to suppress the errors by changing the configuration to ...

Adding values to an array and using a for loop to acces and work with array elements.

Learn how to do simple math in JavaScript and create constants. Watch this video to learn about functions: ...

In this episode I'll talk about why immutability is important and how it can benefit you. I will draw some comparisons between ...

What is an iterator in Javascript? The video will answer this question and many more about iterators. If you are new to Javascript ...

Just like any other skill, problem solving takes practice to apply and master. Many developers think that becoming a better ...

This series will explore TypeScript for JavaScript developers by taking a JavaScript app and transforming it piece by piece. In this ...

In this video, Jeremy shows how to use a modern JavaScript feature for building strings known as "string interopolation.

A simple, short, and easy to understand introduction to JavaScript's numbers. Unary plus vs. Number vs. parseInt vs. parseFloat: ...

The difference between the While and the Do While loops.

In this video, I fix a defect revealed by refactoring to classes. I then use a custom type to define the allowable values of a property.

Learn about functions — the building blocks of programs. Watch this video to learn about IF conditions: ...